DE59103472D1 - Chromic acid production using bipolar membranes. - Google Patents
Chromic acid production using bipolar membranes.Info
- Publication number
- DE59103472D1 DE59103472D1 DE59103472T DE59103472T DE59103472D1 DE 59103472 D1 DE59103472 D1 DE 59103472D1 DE 59103472 T DE59103472 T DE 59103472T DE 59103472 T DE59103472 T DE 59103472T DE 59103472 D1 DE59103472 D1 DE 59103472D1
- Authority
- DE
- Germany
- Prior art keywords
- acid production
- chromic acid
- bipolar membranes
- bipolar
- membranes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
- B01D61/445—Ion-selective electrodialysis with bipolar membranes; Water splitting
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/22—Inorganic acids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/28—Per-compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4020051A DE4020051A1 (en) | 1990-06-23 | 1990-06-23 | Alkali di:chromate and chromic acid prodn. by electrolysis - in multi--compartment cell with bipolar ion exchange membrane to screen anode from chromium cpds. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59103472D1 true DE59103472D1 (en) | 1994-12-15 |
Family
ID=6408944
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4020051A Withdrawn DE4020051A1 (en) | 1990-06-23 | 1990-06-23 | Alkali di:chromate and chromic acid prodn. by electrolysis - in multi--compartment cell with bipolar ion exchange membrane to screen anode from chromium cpds. |
DE59103472T Expired - Fee Related DE59103472D1 (en) | 1990-06-23 | 1991-06-08 | Chromic acid production using bipolar membranes. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4020051A Withdrawn DE4020051A1 (en) | 1990-06-23 | 1990-06-23 | Alkali di:chromate and chromic acid prodn. by electrolysis - in multi--compartment cell with bipolar ion exchange membrane to screen anode from chromium cpds. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5096547A (en) |
EP (1) | EP0463438B1 (en) |
JP (1) | JPH04231489A (en) |
BR (1) | BR9102613A (en) |
DE (2) | DE4020051A1 (en) |
ES (1) | ES2063405T3 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9302261A (en) * | 1993-12-24 | 1995-07-17 | Elektrolyse Project B V | Method for cleaning acid solution. |
US6063252A (en) * | 1997-08-08 | 2000-05-16 | Raymond; John L. | Method and apparatus for enriching the chromium in a chromium plating bath |
AUPP521298A0 (en) * | 1998-08-12 | 1998-09-03 | Life Therapeutics Limited | Purification of fibrinogen |
US20050224355A1 (en) * | 1999-12-23 | 2005-10-13 | Brendon Conlan | Removal of biological contaminants |
AUPP790898A0 (en) | 1998-12-23 | 1999-01-28 | Life Therapeutics Limited | Renal dialysis |
AUPP790698A0 (en) * | 1998-12-23 | 1999-01-28 | Life Therapeutics Limited | Separation of microorganisms |
US7077942B1 (en) | 1999-12-23 | 2006-07-18 | Gradipore Limited | Removal of biological contaminants |
AUPQ691400A0 (en) | 2000-04-14 | 2000-05-11 | Life Therapeutics Limited | Separation of micromolecules |
AUPQ697300A0 (en) | 2000-04-18 | 2000-05-11 | Life Therapeutics Limited | Separation apparatus |
DE60140537D1 (en) | 2000-04-18 | 2009-12-31 | Gradipore Ltd | SEPARATION AND TREATMENT OF SAMPLES BY ELECTROPHORESIS |
US6923896B2 (en) * | 2000-09-22 | 2005-08-02 | The Texas A&M University System | Electrophoresis apparatus and method |
US20030019753A1 (en) * | 2000-10-05 | 2003-01-30 | David Ogle | Multi-port separation apparatus and method |
AUPR222300A0 (en) * | 2000-12-21 | 2001-01-25 | Life Therapeutics Limited | Electrophoresis device and method |
RU2591025C1 (en) * | 2015-03-11 | 2016-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский химико-технологический университет имени Д. И. Менделеева" (РХТУ им. Д. И. Менделеева) | Method of electric membrane regeneration of solution for removal of chromium coatings |
CN104862730B (en) * | 2015-06-12 | 2018-03-06 | 广东航鑫科技股份公司 | A kind of method that electrolysis with ion-exchange film prepares potassium permanganate |
JP7219051B2 (en) * | 2018-10-31 | 2023-02-07 | 三菱重工業株式会社 | Acidic treatment liquid treatment apparatus and acidic treatment liquid treatment method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB961200A (en) * | 1961-12-08 | 1964-06-17 | Pittsburgh Plate Glass Co | Production of chromic acid |
US3305463A (en) * | 1962-03-16 | 1967-02-21 | Pittsburgh Plate Glass Co | Electrolytic production of dichromates |
US4290864A (en) * | 1979-05-29 | 1981-09-22 | Diamond Shamrock Corporation | Chromic acid production process using a three-compartment cell |
US4273628A (en) * | 1979-05-29 | 1981-06-16 | Diamond Shamrock Corp. | Production of chromic acid using two-compartment and three-compartment cells |
US4536269A (en) * | 1983-05-02 | 1985-08-20 | Allied Corporation | Multichamber two-compartment electrodialytic water splitter and method of using same for acidification of aqueous soluble salts |
-
1990
- 1990-06-23 DE DE4020051A patent/DE4020051A1/en not_active Withdrawn
-
1991
- 1991-06-08 DE DE59103472T patent/DE59103472D1/en not_active Expired - Fee Related
- 1991-06-08 EP EP91109415A patent/EP0463438B1/en not_active Expired - Lifetime
- 1991-06-08 ES ES91109415T patent/ES2063405T3/en not_active Expired - Lifetime
- 1991-06-19 JP JP3173339A patent/JPH04231489A/en active Pending
- 1991-06-21 US US07/718,729 patent/US5096547A/en not_active Expired - Lifetime
- 1991-06-21 BR BR919102613A patent/BR9102613A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0463438B1 (en) | 1994-11-09 |
DE4020051A1 (en) | 1992-01-02 |
BR9102613A (en) | 1992-01-21 |
ES2063405T3 (en) | 1995-01-01 |
US5096547A (en) | 1992-03-17 |
JPH04231489A (en) | 1992-08-20 |
EP0463438A1 (en) | 1992-01-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |